Internet Data Sheet
HYS72T256000ER-[3.7/5]-B
Registerd DDR2 SDRAM Module
Ball No.
Other balls
Name
Pin
Type
NC
Buffer
Type
—
Function
19, 55, 68, 102,
NC
137, 138, 173, 220,
221
195
77
ODT0
ODT1
NC
Not connected
I
I
NC
SSTL
SSTL
—
On-Die Termination Control 1:0
Note: 2-Ranks module
Note: 1-Rank modules
TABLE 6
Abbreviations for Buffer Type
Abbreviation
SSTL
CMOS
OD
Description
Serial Stub Terminated Logic (SSTL_18)
CMOS Levels
Open Drain. The corresponding ball has 2 operational states, active low and tristate,
and allows multiple devices to share as a wire-OR.
TABLE 7
Abbreviations for ball Type
Abbreviation
I
O
I/O
AI
PWR
GND
NU
NC
Description
Standard input-only ball. Digital levels.
Output. Digital levels.
I/O is a bidirectional input/output signal.
Input. Analog levels.
Power
Ground
Not Usable
Not Connected
Rev. 1.0, 2006-10
10202006-EHWJ-OT02
11
QIMONDA [ QIMONDA AG ]
